We have Oracle iPlanet web server, i understand that the iPlanet support was discontinued with Dynatrace 6.1 - in the release notes under "End of Life". But we need to configure it. Can we do that with old version of agent?
As the support is discontinued, dynatrace agent will might work fine with old version.
Please note that my current version of dyntrace is 6.5
No you can't do that because we had the same situation in the past even with version 6.2.0 but were not entertained by Dynatrace.
Also check the following link for the Collector and Agents compatibility matrix: